| Alongkorn Prathumwong | |
| Fullname: | Alongkorn Prathumwong |
| Birth Date: | 28 June 1986 |
| Birth Place: | Prachinburi, Thailand |
| Position: | Left-back |
| Years1: | 2007–2008 |
| Clubs1: | Rajpracha |
| Caps1: | 13 |
| Goals1: | 1 |
| Years2: | 2009–2013 |
| Clubs2: | Krung Thonburi |
| Caps2: | 21 |
| Goals2: | 3 |
| Years3: | 2014 |
| Clubs3: | Sisaket |
| Caps3: | 33 |
| Goals3: | 1 |
| Years4: | 2015–2019 |
| Clubs4: | Chonburi |
| Caps4: | 84 |
| Goals4: | 0 |
| Years5: | 2019–2020 |
| Clubs5: | Ratchaburi Mitr Phol |
| Caps5: | 6 |
| Goals5: | 0 |
| Years6: | 2020–2021 |
| Clubs6: | Sisaket |
| Caps6: | 15 |
| Goals6: | 0 |
| Totalcaps: | 172 |
| Totalgoals: | 5 |
Alongkorn Prathumwong (Thai: อลงกรณ์ ประทุมวงศ์, born June 28, 1986), simply known as Jack (Thai: แจ็ค), is a Thai retired professional footballer who plays as a left-back.